Milliwatts to Kilowatts

Convert Milliwatts to Kilowatts instantly. Free online power unit converter with exact formula, conversion table and FAQ.

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Formula

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Formula

kW = mW × 1e-6

mW = kW × 1000000

Conversion table

1 mW1e-6 kW
5 mW5e-6 kW
10 mW1e-5 kW
20 mW2e-5 kW
50 mW5e-5 kW
100 mW0.0001 kW
500 mW0.0005 kW
1000 mW0.001 kW
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Frequently asked questions

What is the source unit in this conversion?

The source unit is the milliwatt (mW). A milliwatt is 0.001 watt units.

What is the destination unit in this conversion?

The destination unit is the kilowatt (kW). A kilowatt is 1000 watt units.

How do I convert milliwatts to kilowatts?

Multiply the milliwatt value by 1e-6 to get kilowatt. For example, 1000 mW × 1e-6 = 0.001 kW.

Is the milliwatts to kilowatts conversion exact?

Yes. Both units are defined by fixed numeric relationships to the watt, so the conversion factor used here, 1e-6, is exact.

Where is this conversion commonly used?

It is used when comparing power ratings expressed in milliwatts against equipment, engines, or specifications rated in kilowatts.

Can I convert kilowatts back to milliwatts?

Yes. Multiply the kilowatt value by 1000000 to get milliwatt.

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About this conversion

This page converts milliwatts (mW) into kilowatts (kW), two units used to describe power, the rate at which energy is transferred or work is done.

A milliwatt is 0.001 watt units.

A kilowatt is 1000 watt units.

The formula is kW = mW × 1e-6, derived from each unit's fixed relationship to the watt, the SI unit of power.

Because both units are defined by exact numeric relationships to the watt, this conversion is exact rather than approximate.